from dictonary.reference.com: noun. a sheer silk or rayon crepe of dull texture.
My note: Often with a crinkled look.
The New York Times of August 8, 1918, reporting on the wedding of President Woodrow Wilson's daughter Alice Wilson had this to say:
"The bride wore a gown of white Georgette crepe embroidered in beads and silk threads, made over satin. The skirt was short, with a panel in the back. Her tulle veil, which formed a train, was held with a coronet of rare old lace, loaned by Mrs. Woodrow Wilson, and the orange blossoms were those worn by the sisters of the bridegroom at their weddings."